Plastic forms for poured concrete

Static structures (e.g. – buildings) – With synthetic resinous component – Foam

Patent

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Details

52439, 52594, E04C 100

Patent

active

051232227

ABSTRACT:
A hollow foamed plastic form for concrete has a pair of opposed parallel side walls with planar upper and lower faces, and a pair of opposed end members. Disposed on the upper and lower faces of the side walls are a series of elongated locking members, each composed of a pair of offset ribs having a trapezoidal or rectangular shape.

REFERENCES:
patent: 4884382 (1989-12-01), Horobin
patent: 4894969 (1990-01-01), Horobin
patent: 5014480 (1991-05-01), Guarriello et al.
patent: 5024035 (1991-06-01), Hanson et al.

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